1<?php
2/**
3 * Overwriting DokuWiki template functions
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Sascha Leib <sascha@leib.be>
7 * @author     Andreas Gohr <andi@splitbrain.org>
8 */
9
10use dokuwiki\Extension\Event;
11
12/**
13 * Print the specific HTML meta headers
14 *
15 * Overrides the original version by modifying the headers and the way it is printed
16 *
17 * @author Sascha Leib <sascha@leib.be>
18 * @author Andreas Gohr <andi@splitbrain.org>
19 *
20 * @triggers TPL_METAHEADER_OUTPUT
21 * @param  bool $alt Should feeds and alternative format links be added?
22 * @return bool
23 */
24function my_metaheaders($alt = true) {
25    global $ID;
26    global $REV;
27    global $INFO;
28    global $JSINFO;
29    global $ACT;
30    global $QUERY;
31    global $lang;
32    global $conf;
33    global $updateVersion;
34    /** @var Input $INPUT */
35    global $INPUT;
36
37    // prepare the head array
38    $head = array();
39
40    // prepare seed for js and css
41    $tseed   = $updateVersion;
42    $depends = getConfigFiles('main');
43    $depends[] = DOKU_CONF."tpl/".$conf['template']."/style.ini";
44    foreach($depends as $f) $tseed .= @filemtime($f);
45    $tseed   = md5($tseed);
46
47	// Open Graph information
48	$meta = p_get_metadata($ID);
49	if ($meta['title'] !== null) {
50		$head['meta'][] = array('property' => 'og:title', 'content' => tpl_pagetitle($ID, true));
51		$head['meta'][] = array('property' => 'og:site_name ', 'content' => $conf['title']);
52		$head['meta'][] = array('property' => 'og:type', 'content' => 'website');
53		$head['meta'][] = array('property' => 'og:url', 'content' => wl($ID, '', true, '&'));
54
55		$parts = explode("\n", $meta['description']['abstract']);
56		$head['meta'][] = array('property' => 'og:description', 'content' => $parts[2]);
57
58		// Bing insists in a non-og description:
59		$head['meta'][] = array('property' => 'description', 'content' => $parts[2]);
60	}
61
62    // the usual stuff
63    $head['meta'][] = array('name'=> 'generator', 'content'=> 'DokuWiki');
64    if(actionOK('search')) {
65        $head['link'][] = array(
66            'rel' => 'search', 'type'=> 'application/opensearchdescription+xml',
67            'href'=> DOKU_BASE.'lib/exe/opensearch.php', 'title'=> $conf['title']
68        );
69    }
70
71    $head['link'][] = array('rel'=> 'start', 'href'=> DOKU_BASE);
72    if(actionOK('index')) {
73        $head['link'][] = array(
74            'rel'  => 'contents', 'href'=> wl($ID, 'do=index', false, '&'),
75            'title'=> $lang['btn_index']
76        );
77    }
78
79    if (actionOK('manifest')) {
80        $head['link'][] = array('rel'=> 'manifest', 'href'=> DOKU_BASE.'lib/exe/manifest.php');
81    }
82
83    $styleUtil = new \dokuwiki\StyleUtils();
84    $styleIni = $styleUtil->cssStyleini();
85    $replacements = $styleIni['replacements'];
86    if (!empty($replacements['__theme_color__'])) {
87        $head['meta'][] = array('name' => 'theme-color', 'content' => $replacements['__theme_color__']);
88    }
89
90    if($alt) {
91        if(actionOK('rss')) {
92            $head['link'][] = array(
93                'rel'  => 'alternate', 'type'=> 'application/rss+xml',
94                'title'=> $lang['btn_recent'], 'href'=> DOKU_BASE.'feed.php'
95            );
96            $head['link'][] = array(
97                'rel'  => 'alternate', 'type'=> 'application/rss+xml',
98                'title'=> $lang['currentns'],
99                'href' => DOKU_BASE.'feed.php?mode=list&ns='.(isset($INFO) ? $INFO['namespace'] : '')
100            );
101        }
102        if(($ACT == 'show' || $ACT == 'search') && $INFO['writable']) {
103            $head['link'][] = array(
104                'rel'  => 'edit',
105                'title'=> $lang['btn_edit'],
106                'href' => wl($ID, 'do=edit', false, '&')
107            );
108        }
109
110        if(actionOK('rss') && $ACT == 'search') {
111            $head['link'][] = array(
112                'rel'  => 'alternate', 'type'=> 'application/rss+xml',
113                'title'=> $lang['searchresult'],
114                'href' => DOKU_BASE.'feed.php?mode=search&q='.$QUERY
115            );
116        }
117
118        if(actionOK('export_xhtml')) {
119            $head['link'][] = array(
120                'rel' => 'alternate', 'type'=> 'text/html', 'title'=> $lang['plainhtml'],
121                'href'=> exportlink($ID, 'xhtml', '', false, '&')
122            );
123        }
124
125        if(actionOK('export_raw')) {
126            $head['link'][] = array(
127                'rel' => 'alternate', 'type'=> 'text/plain', 'title'=> $lang['wikimarkup'],
128                'href'=> exportlink($ID, 'raw', '', false, '&')
129            );
130        }
131    }
132
133    // setup robot tags apropriate for different modes
134    if(($ACT == 'show' || $ACT == 'export_xhtml') && !$REV) {
135        if($INFO['exists']) {
136            //delay indexing:
137            if((time() - $INFO['lastmod']) >= $conf['indexdelay'] && !isHiddenPage($ID) ) {
138                $head['meta'][] = array('name'=> 'robots', 'content'=> 'index,follow');
139            } else {
140                $head['meta'][] = array('name'=> 'robots', 'content'=> 'noindex,nofollow');
141            }
142            $canonicalUrl = wl($ID, '', true, '&');
143            if ($ID == $conf['start']) {
144                $canonicalUrl = DOKU_URL;
145            }
146            $head['link'][] = array('rel'=> 'canonical', 'href'=> $canonicalUrl);
147        } else {
148            $head['meta'][] = array('name'=> 'robots', 'content'=> 'noindex,follow');
149        }
150    } elseif(defined('DOKU_MEDIADETAIL')) {
151        $head['meta'][] = array('name'=> 'robots', 'content'=> 'index,follow');
152    } else {
153        $head['meta'][] = array('name'=> 'robots', 'content'=> 'noindex,nofollow');
154    }
155
156    // set metadata
157    if($ACT == 'show' || $ACT == 'export_xhtml') {
158        // keywords (explicit or implicit)
159        if(!empty($INFO['meta']['subject'])) {
160            $head['meta'][] = array('name'=> 'keywords', 'content'=> join(',', $INFO['meta']['subject']));
161        } else {
162            $head['meta'][] = array('name'=> 'keywords', 'content'=> str_replace(':', ',', $ID));
163        }
164    }
165
166    // load stylesheets
167    $head['link'][] = array(
168        'rel' => 'stylesheet',
169        'href'=> DOKU_BASE . 'lib/exe/css.php?t='.rawurlencode($conf['template']).'&tseed='.$tseed
170    );
171
172    $script = "var NS='".(isset($INFO)?$INFO['namespace']:'')."';\n\t\t";
173    if($conf['useacl'] && $INPUT->server->str('REMOTE_USER')) {
174        $script .= "var SIG=".toolbar_signature().";\n\t\t";
175    }
176
177    if($conf['basedir']) {
178        $script .= 'var BASEDIR="'.$conf['basedir']."\";\n\t\t";
179    }
180
181    jsinfo();
182    $script .= 'var JSINFO = ' . json_encode($JSINFO).';';
183    $head['script'][] = array('_data'=> $script);
184
185    // load jquery
186    $jquery = getCdnUrls();
187    foreach($jquery as $src) {
188        $head['script'][] = array(
189            /* 'charset' => 'utf-8', -- obsolete */
190            '_data' => '',
191            'src' => $src,
192        ) + ($conf['defer_js'] ? [ 'defer' => 'defer'] : []);
193    }
194
195    // load our javascript dispatcher
196    $head['script'][] = array(
197        /* 'charset'=> 'utf-8', -- obsolete */
198		'_data'=> '',
199        'src' => DOKU_BASE . 'lib/exe/js.php'.'?t='.rawurlencode($conf['template']).'&tseed='.$tseed,
200    ) + ($conf['defer_js'] ? [ 'defer' => 'defer'] : []);
201
202    // trigger event here
203    Event::createAndTrigger('TPL_METAHEADER_OUTPUT', $head, '_my_metaheaders_action', true);
204    return true;
205}
206
207/**
208 * prints the array build by my_metaheaders
209 *
210 * Overrides the original version by adding a tab before each line for neater HTML code
211 *
212 * @author Sascha Leib <sascha@leib.be>
213 * @author Andreas Gohr <andi@splitbrain.org>
214 *
215 * @param array $data
216 */
217function _my_metaheaders_action($data) {
218    foreach($data as $tag => $inst) {
219        foreach($inst as $attr) {
220            if ( empty($attr) ) { continue; }
221            echo "\t<", $tag, ' ', buildAttributes($attr);
222            if(isset($attr['_data']) || $tag == 'script') {
223                if($tag == 'script' && $attr['_data'])
224                    $attr['_data'] = "/*<![CDATA[*/".
225                        $attr['_data'].
226                        "\n/*!]]>*/";
227
228                echo '>', $attr['_data'], '</', $tag, '>';
229            } else {
230                echo '/>';
231            }
232            echo "\n";
233        }
234    }
235}
236
237/**
238 * get a link to the homepage.
239 *
240 * wraps the original wl() function to allow overriding in the options
241 *
242 * @author Sascha Leib <sascha@leib.be>
243 *
244 * @returns string (link)
245 */
246function my_homelink() {
247    global $conf;
248
249	$hl = trim(tpl_getConf('homelink'));
250
251	if ( $hl !== '' ) {
252		return $hl;
253	} else {
254		return wl(); // default homelink
255	}
256}
257
258/**
259 * Print the breadcrumbs trace
260 *
261 * Cleanup of the original code to create neater and more accessible HTML
262 *
263 * @author Sascha Leib <sascha@leib.be>
264 * @author Andreas Gohr <andi@splitbrain.org>
265 *
266 * @param string $prefix inserted before each line
267 *
268 * @return void
269 */
270function my_breadcrumbs($prefix = '') {
271    global $lang;
272    global $conf;
273
274    //check if enabled
275    if(!$conf['breadcrumbs']) return false;
276
277    $crumbs = breadcrumbs(); //setup crumb trace
278
279	/* begin listing */
280	echo $prefix . "<nav id=\"navBreadCrumbs\">\n";
281	echo $prefix . "\t<h4>" . $lang['breadcrumb'] . "</h4>\n";
282	echo $prefix . "\t<ol reversed>\n";
283
284    $last = count($crumbs);
285    $i    = 0;
286    foreach($crumbs as $id => $name) {
287        $i++;
288		echo $prefix . "\t\t<li" . ($i == $last ? ' class="current"' : '') . '><bdi>' . tpl_link(wl($id), hsc($name), '', true) .  "</bdi></li>\n";
289    }
290	echo $prefix . "\t</ol>\n";
291	echo $prefix . "</nav>\n";
292}
293
294/**
295 * Hierarchical breadcrumbs
296 *
297 * Cleanup of the original code to create neater and more accessible HTML
298 *
299 * @author Sascha Leib <sascha@leib.be>
300 * @author Andreas Gohr <andi@splitbrain.org>
301 * @author Nigel McNie <oracle.shinoda@gmail.com>
302 * @author Sean Coates <sean@caedmon.net>
303 * @author <fredrik@averpil.com>
304 *
305 * @param  string $prefix to be added before each line
306 *
307 */
308function my_youarehere($prefix = '') {
309    global $conf;
310    global $ID;
311    global $lang;
312
313    // check if enabled
314    if(!$conf['youarehere']) return false;
315
316    $parts = explode(':', $ID);
317    $count = count($parts);
318	$isdir = ( $parts[$count-1] == $conf['start']);
319
320	$hl = trim(tpl_getConf('homelink'));
321
322	echo $prefix . "<nav id=\"navYouAreHere\">\n";
323	echo $prefix . "\t<h4>" . $lang['youarehere'] . "</h4>\n";
324	echo $prefix . "\t<ol>\n";
325
326    // always print the startpage
327	if ( $hl !== '' ) {
328		echo $prefix . "\t\t<li class=\"home\">" . tpl_link( $hl, htmlentities(tpl_getLang('homepage')), ' title="' . htmlentities(tpl_getLang('homepage')) . '"', true) . "</li>\n";
329		echo $prefix . "\t\t<li>" . tpl_pagelink(':'.$conf['start'], null, true) . "</li>\n";
330	} else {
331		echo $prefix . "\t\t<li class=\"home\">" . tpl_pagelink(':'.$conf['start'], null, true) . "</li>\n";
332	}
333
334    // print intermediate namespace links
335    $part = '';
336    for($i = 0; $i < $count - 1; $i++) {
337        $part .= $parts[$i].':';
338        $page = $part;
339        //if($page !== $conf['start']) { // Skip startpage
340
341			if ($i == $count-2 && $isdir)  break; // Skip last if it is an index page
342
343			echo $prefix . "\t\t<li>" . tpl_pagelink($page, null, true) . "</li>\n";
344		//}
345    }
346
347    // chould the current page be included in the listing?
348	$trail = tpl_getConf('navtrail');
349
350	if ($trail !== 'none' && $trail !== '') {
351		resolve_pageid('', $page, $exists);
352		//if ( !(isset($page) && $page == $part.$parts[$i]) || !($page == $conf['start']) ) {
353			echo $prefix . "\t\t<li>";
354			if ($trail == 'text') {
355				echo tpl_pagetitle(null, true);
356			} else if ($trail == 'link') {
357				echo tpl_pagelink($ID, null, true);
358			}
359			echo "</li>\n";
360		//}
361	}
362
363	echo $prefix . "\t</ol>\n";
364	echo $prefix . "</nav>\n";
365}
366
367/**
368 * My implementation of the basic userinfo (in the global banner)
369 *
370 *
371 * @author Sascha Leib <sascha@leib.be>
372 *
373 * @param  string $prefix to be added before each line
374 *
375 * @return void
376 */
377function my_userinfo($prefix = '') {
378    global $lang;
379    global $INPUT;
380
381	// add login/logout button:
382	$items = (new \dokuwiki\Menu\UserMenu())->getItems();
383	foreach($items as $it) {
384		$typ = $it->getType();
385
386		if ($typ === 'profile') { // special case for user profile:
387
388			echo $prefix . '<li class="action profile"><span class="sronly">' . $lang['loggedinas'] .
389				' </span><a href="' . htmlentities($it->getLink()) . '" title="' . $it->getTitle() . '">' .
390				userlink() . "</a></li>\n";
391
392		} else {
393
394			echo $prefix . "<li class=\"action $typ\"><a href=\"" . htmlentities($it->getLink()) .
395				'" title="' . $it->getTitle() . '">' . ($typ === 'profile'? userlink() : $it->getLabel() ) .
396				"</a></li>\n";
397		}
398	}
399}
400
401/**
402 *Inserts a cleaner version of the TOC
403 *
404 * This is an update of the original function that renders the TOC directly.
405 *
406 * @author Sascha Leib <sascha@leib.be>
407 * @author Andreas Gohr <andi@splitbrain.org>
408 *
409 * @param  string $prefix to be added before each line
410 *
411 * @return void
412 */
413function my_toc($prefix = '') {
414    global $TOC;
415    global $ACT;
416    global $ID;
417    global $REV;
418    global $INFO;
419    global $conf;
420    global $lang;
421    $toc = array();
422
423    if(is_array($TOC)) {
424        // if a TOC was prepared in global scope, always use it
425        $toc = $TOC;
426    } elseif(($ACT == 'show' || substr($ACT, 0, 6) == 'export') && !$REV && $INFO['exists']) {
427        // get TOC from metadata, render if neccessary
428        $meta = p_get_metadata($ID, '', METADATA_RENDER_USING_CACHE);
429        if(isset($meta['internal']['toc'])) {
430            $tocok = $meta['internal']['toc'];
431        } else {
432            $tocok = true;
433        }
434        $toc = isset($meta['description']['tableofcontents']) ? $meta['description']['tableofcontents'] : null;
435        if(!$tocok || !is_array($toc) || !$conf['tocminheads'] || count($toc) < $conf['tocminheads']) {
436            $toc = array();
437        }
438    } elseif($ACT == 'admin') {
439        // try to load admin plugin TOC
440        /** @var $plugin AdminPlugin */
441        if ($plugin = plugin_getRequestAdminPlugin()) {
442            $toc = $plugin->getTOC();
443            $TOC = $toc; // avoid later rebuild
444        }
445    }
446
447	/* Build the hierarchical list of headline links: */
448	if (count($toc) >= intval($conf['tocminheads'])) {
449		echo $prefix . "<aside id=\"toc\" class=\"toggle hide\">\n";
450		echo $prefix . "\t<h3 class=\"tg_button\" title=\"" . htmlentities($lang['toc']) . '"><span>' . htmlentities($lang['toc']) . "</span></h3>\n" . $prefix . "\t<div class=\"tg_content\">";
451		$level = intval("0");
452		foreach($toc as $it) {
453
454			$nl = intval($it['level']);
455			$cp = ($nl <=> $level);
456
457			if ($cp > 0) {
458				echo "\n" . $prefix . str_repeat("\t", $level*2 + 2) . "<ol>\n";
459			} else if ($cp < 0) {
460				echo "\n" . $prefix . str_repeat("\t", $level*2) . "</ol></li>\n";
461			} else {
462				echo "</li>\n";
463			}
464
465			$href = $it['link'] . ( $it['hid'] == '' ? '' : '#' . $it['hid'] );
466
467			echo $prefix . str_repeat("\t", $nl*2 + 1) . '<li><a href="' . $href . '">' . htmlentities($it['title']) . "</a>";
468			$level = $nl;
469		}
470
471		for ($i = $level-1; $i > 0; $i--) {
472			echo "</li>\n" . $prefix . str_repeat("\t", $i*2 + 1) . "</ol>";
473		}
474
475		echo "</li>\n" . $prefix . "\t\t</ol>\n" . $prefix . "\t</div>\n" . $prefix . "</aside>\n";
476	}
477}
478
479/**
480 * Print last change date
481 *
482 * @author Sascha Leib <sascha@leib.be>
483 *
484 * @param  string $prefix to be added before each line
485 *
486 * @return void
487 */
488function my_lastchange($prefix = '') {
489
490    global $lang;
491    global $INFO;
492
493	$format = '%Y-%m-%dT%T%z';	/* e.g. 2021-21-05T16:45:12+02:00 */
494
495	$date = $INFO['lastmod'];
496
497	echo $prefix . '<bdi>' . $lang['lastmod'] . "</bdi>\n";
498	echo $prefix . '<time datetime="' . strftime($format, $date) . '">' . dformat($date) . "</time>\n";
499
500	/* user name for last change (is this really interesting to the visitor?) */
501	/* echo $prefix .'<span class="editorname" tabindex="0">' . $lang['by'] . ' <bdi>' . editorinfo($INFO['editor']) . "</bdi></span>\n"; */
502}
503
504/**
505 * Returns a description list of the metatags of the current image
506 *
507 * @return string html of description list
508 */
509function my_img_meta($prefix = '') {
510    global $lang;
511
512	$format = '%Y-%m-%dT%T%z';	/* e.g. 2021-21-05T16:45:12+02:00 */
513
514    $tags = tpl_get_img_meta();
515
516    foreach($tags as $tag) {
517        $label = $lang[$tag['langkey']];
518        if(!$label) $label = $tag['langkey'] . ':';
519
520        echo $prefix . '<tr><th>'.$label.'</th><td>';
521        if ($tag['type'] == 'date') {
522            echo '<time datetime="' . strftime($format, $tag['value']) . '">' . dformat($tag['value']) . '</time>';
523        } else {
524            echo hsc($tag['value']);
525        }
526        echo "</td></tr>\n";
527    }
528}
529
530/**
531 * Creates the Site logo image link
532 *
533 */
534function my_sitelogo() {
535    global $conf;
536
537	// get logo either out of the template images folder or data/media folder
538	$logoSize = array();
539	$logo = tpl_getMediaFile(array(':logo.svg', ':wiki:logo.svg', ':logo.png', ':wiki:logo.png', 'images/sitelogo.svg'), false, $logoSize);
540	tpl_link( my_homelink(),
541		'<img src="'.$logo.'" ' . $logoSize[3] . ' alt="' . htmlentities($conf['title']) . '" />', 'accesskey="h" title="[H]" class="logo"');
542}
543
544/**
545 * Creates the various favicon and similar links:
546 *
547 * @param  string $color overwrite the theme color.
548 *
549 * @return null
550 */
551function my_favicons($color = null) {
552
553	$logoSize = array();
554
555	// Theme color:
556	if ($color == null) {
557
558		/* get the style config */
559		$styleUtil = new \dokuwiki\StyleUtils();
560		$styleIni = $styleUtil->cssStyleini();
561		$replacements = $styleIni['replacements'];
562		$color = $replacements['__theme_color__'];
563
564		if ($color== null) { $color = '#2b73b7'; }
565	}
566	echo "\t<meta name=\"theme-color\" content=\"" . $color . "\" />\n";
567
568	// get the favicon:
569	$link = tpl_getMediaFile(array(':favicon.ico', ':favicon.png', ':favicon.svg', ':wiki:favicon.ico', ':wiki:favicon.png', ':wiki:favicon.svg'), false, $logoSize);
570	echo "\t<link rel=\"icon\" href=\"" . $link . "\" />\n";
571
572	// Apple Touch Icon
573	$logoSize = array();
574	$link = tpl_getMediaFile(array(':apple-touch-icon.png', ':wiki:apple-touch-icon.png', 'images/apple-touch-icon.png'), false, $logoSize);
575	echo "\t<link rel=\"apple-touch-icon\" href=\"" . $link . "\" />\n";
576
577}
578
579/**
580 * inserts the Cookies banner, if appropriate.
581 * This is based on Michal Koutny’s "cookielaw" plugin
582 *
583 * @param  string $prefix to be added before each line
584 */
585function my_cookiebanner($prefix = '') {
586
587	// get the configuration settings:
588	$msg = tpl_getConf('cookiemsg', '(no message configured)');
589	$position = tpl_getConf('cookiepos', 'bottom');
590	$link = tpl_getConf('cookielink', 'about:cookies');
591
592	// if the cookie is already set or position is set to hide, do nothing.
593	if ( isset($_COOKIE['cookielaw']) or $position == 'hide') {
594		return;
595	}
596
597	// output the HTML code:
598	echo $prefix . "<div id=\"cookiebanner\" class=\"cb_" . $position . "\">\n";
599	echo $prefix . "\t<p class=\"cb_info\"><span class=\"cb_icon\"></span>\n";
600	echo $prefix . "\t\t<span class=\"cb_msg\">". $msg . "</span>\r";
601	echo $prefix . "\t</p>\n";
602	echo $prefix . "\t<p class=\"cb_action\">\n";
603	echo $prefix . "\t\t<button>" . hsc(tpl_getLang('cookie_consent')) . "</button>\n";
604	echo $prefix . "\t\t";
605	if ( substr($link, 0, 7) == 'http://' || substr($link, 0, 8) == 'https://') {
606		echo '<a href="' . $link . '" target="_blank">' . hsc(tpl_getLang('cookie_linktext')) . '</a>';
607	} else {
608		tpl_pagelink($link, tpl_getLang('cookie_linktext'));
609	}
610	echo $prefix . "\n\t</p>\n" . $prefix . "</div>\n";
611
612}
613